let isRaining = false
if(isRaining) {
    console.log("带伞")
} else {
    console.log("不带伞")
}

let socre = 85

if(socre > 90){
    console.log("优秀")
} else if(socre > 60) {
    console.log("及格")
} else {
    console.log("不及格")
}

const password = "pass@word"
if(password.length >= 8) {
    console.log("密码长度符合要求")
}